li_num = [94, 89, 96, 88, 92, 86, 69, 95, 78, 85]
li_num.sort(reverse=True)
length = len(li_num)
if length%2 == 0:
    median = (li_num[length//2-1]+li_num[length//2])/2
else:
    median = li_num[length//2]
print("平均值：{}".format(sum(li_num)/length))
print("最高的三个成绩：{}".format(li_num[0:3]))
print("最低的三个成绩：{}".format(li_num[-1:-4:-1]))
print("中位数：{}".format(median))
print("软件21-2 25 唐浩天")